Port 4102 — Hydra IAM (public)

Role: OAuth2 endpoint

Exposure: host-bound

Purpose

Employee-facing OAuth2.

Security

Public exposure is expected, but defense-in-depth via Caddy.

Verify exposure

# From outside the VPS
nmap -p 4102 <vps-ip>
# Expected: depends on your firewall config

Related

• Operate — Network topology
• Reference — Ports